Portable grain cleaning machine



Sept. 12, 1933. J. w. HOEFLING 1,926,621

PORTABLE GRAIN CLEANING MACHINE Filed May 29. 1930 5 Sheets-Sheet J S p 1933- J. w. HOEFLING PORTABLE GRAIN CLEANING MACHINE Filed May 29, 1930 3 Sheets-Sheet 2 Sept J. w. HOEFLING PORTABLE GRAIN CLEANING MACHINE Filed May 29. 1950 5 Sheets-Sheet m w W w Wm, H .Q w hm M M.

"Patented Sept. 12, 1933 Y N ED- T Thisinvention relates to the treatment of grain and has special reference to, a portable grain cleaning machine. Q

In the closecleaning of grainj'as for seed pur- 5 poses, it is desirable to use an assembly pfaspira tors, screeningmechanisms and disc separators to effect complete Separation of .the good grain from thatwhich is undesirable and from foreign seedsand materials. It is also desirable to'prom vide in such a combinationfa smut treating device and a 'supplybin for maintaining a constant feed; together with meansrforconve'yingthe grain from one to another of the mechanisms successive- 1y, thus doing a complete job of cleaning and also of smut treating in one handling. Itis furthei desirable that such a combination be capable Qof handling any-of the common grains, that the various mechanisms may beuse'd' either singly or in, combination, andthat the{ whole be portably or and compactly mountedior quick moving from pl'acefto place without'loss of 'timeff or knocking down and setting up. a a

One important object of the present invention is toprovide an improved and ngvel compact arrangement of the various mechanisms {desirable in such; a'g'rain cleanerythe' arrangement being such that theentire may be mounted ona motor truck frame of the usual length'fthatthe truck motor provide the power for operating' as-well as transporting; that the various mechanismsbe' driven simply onefrom the other without neces- "s ity fora countershaftithatsuch of themechanisms as are 5 not required for certain types of workmay be idle while thenecessaryones only are-inmotion; that changes in adjustment for diiferent grains may be made instantly; thatthe functions'of the various units be inlfull view of the 'operatorythatall parts may bequickly-and thoroughly cleaned out after operation; thatallofthe various'separations made be conveniently spoutedtd separate*sacks;lthat the grain enters and discharges side by side at therear for efficient handling; that after 'treatirig' for smut the excess -powder be removed from the grain; that 'e'fiective control of the poisonous dust be provided at t'the.

"sacking spouts; that-the "whole mechamcal structure may conveniently be removed from the truck chassis to release the truck for; other service' if desired; that the said structure may be removed {stance staticnarily): j i v Furthermorefit has been-customary in mesmtion and-screentypes of machines for this pur pose,*to'place the-eccentric shaft (used for obtain- ;to from the' chassis mounted'otherwise (as for 'in-' 'ing reciprocation of the screens) at one endof purpose by arrangingthe eccentric above mentioned; in'a position intermediate of the length ,of'the screens an'd preferably between them, v through clearance'holes cut to receive said shaft.

entirely out of the way, allows it to bedriven I views, and

' proved machine;

F g t her of connecting the ec'centric shaft'and screens; and g r i; l

the he machine exterior of the main. frame. This shaft is usually plaoedaat the forward end.: In n this position it not only adds considerably'to-the length of the machine but also requires a separate beltto drive it anda countershaft is necessary for power transmission to therear units of the machine.

A -second important'object of the invention is' j i to improve the construction ofmachin'e's for this This newiarrangement-of the eccentric shaft rev diices the overalhlen gth of-the machine, putslit s by the same beltthatdrives the fan shaftabove,

"and provides a countershaft for driving the-rear parts of the whole machine.- V With the above objects inview the invention {consists in'general of certain novel details of constructionand arrangements and combinations "of partshereinaffter' fully described, illustrated in the accompanyingdrawingsj'and specifically claimed! 1 I In the accompanying drawing'alike characters o of' r'eference indicate 1ike' parts'in the several "Figure 1 is a right side elevation of the im- 7 e Figurezis a left side elevation; I Figure 3 is a detail elevationshowing the mannerpf'rnounting the eccentric shaft in the improved 'locationp x r i 1 l 4 is a djetail :e1'evationsh0wingthe man- 9 "Figure 5 is a rear elevation of the machinel, 7 11 In the embodiment'of the invention here disclosedlthere will be seen a motor truck chassis of ordinary standar'dctype and size'and having the spe cialdrivers cab IIwhich is open'at the rear.

Mounted directly back of the cab or'i'the chassis and with its'receiving end iorward is a 'spe cially adapted conventional type suction and' scree n grain-separator. 'This'f'separator occupies the entire space jrea'rwar'dly as. far as the vertically proportioned accumulator bin 61. This bin 61 frestislon the chassis frameandextends upwardly as far as the conveyor casing 38. Immediately 11 05 to the rear'of the bin: 61 is 'theconventionaldisc' grain separator 59 'mcuntedon thechassis frame with the smutftreatingmachine 5'? directly above 'it, and theyvelevatorsfi i[bringingup the rear. v 1 The detail constructionoi these main units and 1D others'of the mechanisms employed is not shown pan .74 in turn discharges into the left hand elehere as the present invention has no relation to the specific characters of. the mechanisms used butrelates instead to, the arrangement and co'-'.

relation of such or similar mechanisms, to accomplish the objects previously set forth.

vator boot for re-elevation and discharges again through'spout'lfi into thedisc separator 59 where separations by length of kernel are made. The thoroughly cleaned grain leaves the. disc separator at either opening 77 or '78, depending on The mechanical'operation of the machine is accomplished; by power derived. from thetr-uck gearing 13 to the shaft 12 which is suitably journaled and extends-across the chassis just fGlT-E' ward of the rear truck wheels; A belt 31 runs treating powder container 70. from whichf the around pulleys 28, 29 and dm'to" drive suctibni' being provided to secure proper engagement of relation thereto perform the various familiar functions. assomated; with: the snction; and screen type: of; separator-- the. screens and? is located'adiacent the reatposts -156t. shaftia supported in; suitable bearings, "that on the left of machine being best showns'in' Fignrera where it willbe seen thatthe-beari'ng 2:1. ism-canted on' axpairrofrverticallyspaced blocks 22: restingagai'nst, thepforward side of the post lid soxthat the bearing; whilexsupportedl fromsaid I post is ispacedi forwardly therefrom the space be-' tween; the hearing; and: thepost and between the bloc-14x22 being, sufficient. topermit passage of the. tailings spout 23 leading from: the upper screen 1 8. ,Orr the shaft 2% are located the: usual H eccentricsa24: connected by blades 25-to' the screens to impart, tothcnr the required reciprocating motion. v 1 1 In Figure- 2; the belt. 50; running over pulleys the; disc separator. 59.. The smut: treatment dust collecting fan 66 is driven from the right end of shaft 65 through pulleys (i7: and '68; while the smut treating machine 57 is driven a1so from shaft 65 by .achain and sprockets 69 Figure 1.

"The treating powder metering device enclosed In operation the. is;introduced-through thehopper 3ififatthe: rear of the: machine, is ele-,

vated .by the middle elevator into the conveyor 38 carries it forward tolthe feed control-' ling hopper 39; of the screen. and; suction mafans-27 and eccentric shaft 20, am tdler pultey 32. 1

powder is metered into the passing stream of grain. The treated grain discharges from treating' machine m" over a screen surface in conduit for" removal of loose powder, to the sacking spouts 37. Suction fan 65 is connected by pipe -8 1- to sacking spouts '37 todraw off floating dust,

Grain may be run through the suctionand .1 Y w sc-reengseparator alone byameansof gate;83. in Theec'centricshaftao in; s new location; as

.showrr'here. extends across the machine'- between disch rg-ing it upwardly away from the operators through. pipe 82.

spout'76 (Figure 2), the belt 5.4Jheing removed also ,to allcwther disc separator and the smut ti e'ating machine.tov remain inactive. The; gate 183' then. turns the grain stream. at this point df- 7-100 rectly i'nto the f discharging conduit, .80. I It is obvioustha-t-many changes may be in the; invention without. departing fromthema- ,terial. detailsthereof, Itis not therefore desired to. confine the invention to the exact f orni. herein ,described, butitis wished to include all. such as come within. the scope.,c laime.d.

Having thus. described the invention',.. what. is claimed'isz- 1 i T I l. In, a portable. gram c1eaner a; suppbrtirig CF chassis, a, suctionscreen machine includinglongitudinallyfezgtendin gj aspiratingf andlfscreening mechanismpositioned forwardly on said; chassis, {a grain hopper. at the rear end of .themachine an. elevator and a; conveyor arrangedto r. ecei.v.e

grain from the hopper and convey it up iand ver. the s t n s r en; n nt t aspib e a s sc n n e h e mi-a m n at therear of. the-suction screen machine to receive the aspirated and screened grain; asec- 0nd elevator communicationwith the grain -bin, a disk grain;separator in communication with the. second elevator, a third elevator receivgrairr from the separator, a smut treating,

. machine communication with the third tale-" vator, means to drive. the screens, separator, ele- I I inthe box. 76% is actuated by the vertical shaft 71 from a bevel gear arrangement at 72;

vatorsand smut treating machine, the elevators being spaced. laterally across the rear of. the supporting chassis, thegrain hopper being located, between the middle elevator, and the elevator O at one side" and agsacking devicebetween the middle-xelevatorand. the elevator at the other chine. The: surplus grain-(over the. desired outply to hopper 39fat. all't-imes.

more fullydisclosed inmy cQ-peridihg Patent noeisoa'z'om ,"m passing through, the-suction. and screen machine alllight materialand. all thatismaller,

,or'lar'geriridiameter than the grain is. removed from the grain which 'is.then. discharged at point 'Z3 '.(Fig:ur'e il onto the grainpan M which is in Igitudinally; extending. .a'spirating and screening grainat the rear of the machine and convey; ,it up and over the suction s'creenj machine to mp le e amc eaner ,as pg nse 5 chassis, a. suction screenmachine including -;lonmechanism positioned forwardly on 'saidchassis, anelevator and a conveyor arranged-to receive deliverthe grain at. the front end of the machine onto. the aspire-ting and screening mechanism, l a second elevator receiving grain'from the suctionQscreen machine; a, disk grain separator im communication with the second. elevator, a smut M5 treating-machine. above saidtdisk separator, a

third elevator receiving-grain fromthe disk grain separator for delivery to the smut treatingma f constant reciprocating..motion. through fixed at tachment to the lower screen shoe, The grain ,chihe, driving'means for ith'eseveral mechanismar said elevators being spaced laterally across the one side and a sacking device between the middle elevatorand the elevator at the other side.

3. In a portable grain cleaner, a supporting chassis, a suction screen machine including longitudinally extending aspirating and screening mechanism positionedforwardly on said chassis,

an elevator and a conveyor arranged to receive grain at the rear of the machine and convey it up and over the suction screen machine to deliver the grain at the front of the machine onto the aspirating and screening mechanism, asecond elevator receiving grain'from the suction screen machine,;a disk grain. separatorin communication with the second elevator, a smut treating machine above said disk grain separa-- tor, a thirdelevator receiving grain from the separator for delivery to the smut treatingmachine, an eccentric shaft for actuatingthe suction screen machine extending transversely of the suction screen machine, a grain cleaner intermediate the length of said screens, 'meansto drive the cleaner and eccentric shaft and drive, means for the disk separator and smut, treating 7 machine actuated from said eccentric shaft.

4. In a portable grain cleaner, asupporting 1,926,621 rear of the supporting chassisa receiving hopper I between the middle elevator and the elevator at mechanisms positioned forwardly on said chassis,

a grain hopper, an'elevator and a conveyor ara ranged to r'eceive grain, at the rear of the machine from'the hopper and convey it up and over the suction screen machine to deliver the grain at the front endfof themachine onto the aspirat-' ing and screening mechanism, a-grain bin at the rear of the suction screen machine and front of the elevator, a second elevator receiving grain from the grain bin, a disk separator receiving grainfrom the second elevator, asmut treating machine forwardly of the elevator and above said disk separator, athird elevator for delivering grain to the smut treating machine, means to drive said screens,1separator, elevators [and smut treating machine including an eccentric. shaft, a frame, on said chassis for support-,. ingthe several mechanisms, bearings for the eccentric shaft supported from the front of rear posts of the frame of the suctionscreen machine,

a pair of vertically spaced blocks between thev bearings and supporting posts and a tailings spout extending'through the space between said blocks:

on one side. I 1 1 HQEFLING. 

